I had the same impression too when I hit with a Q5 this morning. The demo was strung with Prince Premier Attack @59lb, according to TW, and the racket was brand new

Comparing to my Black Ace 93, strung with poly/sg, the Q5 lacks pop in serves. It could be because of the thin beams and head size of the 93 that make it easier to come around. Q5 has that solid and crisp feel, but not harsh. Sweet spot is much bigger than BA93 (obviously). Ground strokes are more powerful so I have to adjust my swing path to keep the ball in with more topspin.